Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 507-514 |
| Journal | International Journal of Food Sciences and Nutrition |
| Volume | 65 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2014 |
| MoE publication type | A1 Journal article-refereed |
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Keywords
- alpha-lactalbumin
- bioactive peptides
- B vitamins
- sleep
- stress
- yoghurts
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Effects of daily intake of yoghurt enriched with bioactive components on chronic stress responses : A double-blinded randomized controlled trial. / Jaatinen, N.; Korpela, R.; Poussa, T.; Turpeinen, A.; Mustonen, S.; Merilahti, Juho; Peuhkuri, K.
In: International Journal of Food Sciences and Nutrition, Vol. 65, No. 4, 2014, p. 507-514.Research output: Contribution to journal › Article › Scientific › peer-review
TY - JOUR
T1 - Effects of daily intake of yoghurt enriched with bioactive components on chronic stress responses
T2 - A double-blinded randomized controlled trial
AU - Jaatinen, N.
AU - Korpela, R.
AU - Poussa, T.
AU - Turpeinen, A.
AU - Mustonen, S.
AU - Merilahti, Juho
AU - Peuhkuri, K.
PY - 2014
Y1 - 2014
N2 - Chronic stress has a negative influence on health. The aim was to determine stress reducing effects of yoghurt enriched with bioactive components as compared to normal yoghurt. High-trait anxiety individuals (n = 67) aged 18-63 years participated in a randomized, placebo-controlled, double-blinded intervention with parallel groups. They received either yoghurt enriched with alpha-lactalbumin, casein tripeptides and B vitamins (active) or isoenergetic standard yoghurt (control). To detect changes in psychological and physiological stress, State-Trait Anxiety Inventory, Profile of Mood States, salivary cortisol, inflammatory markers, blood pressure, heart rate variability (HRV) and actigraphy were monitored. We observed higher ratings of vigor (p = 0.047) and reduced feeling of inefficiency (p = 0.048) in the active group. HRV (baseline adjusted mean 49.1 ± 2.3 ms) and recovery index (106.6 ± 33.4) were higher in the active group than in controls (42.5 ± 2.2 ms and 80.0 ± 29.3) (p = 0.046 and p = 0.02, respectively). In conclusion, daily intake of yoghurt enriched with bioactive components may aid in stress coping.
AB - Chronic stress has a negative influence on health. The aim was to determine stress reducing effects of yoghurt enriched with bioactive components as compared to normal yoghurt. High-trait anxiety individuals (n = 67) aged 18-63 years participated in a randomized, placebo-controlled, double-blinded intervention with parallel groups. They received either yoghurt enriched with alpha-lactalbumin, casein tripeptides and B vitamins (active) or isoenergetic standard yoghurt (control). To detect changes in psychological and physiological stress, State-Trait Anxiety Inventory, Profile of Mood States, salivary cortisol, inflammatory markers, blood pressure, heart rate variability (HRV) and actigraphy were monitored. We observed higher ratings of vigor (p = 0.047) and reduced feeling of inefficiency (p = 0.048) in the active group. HRV (baseline adjusted mean 49.1 ± 2.3 ms) and recovery index (106.6 ± 33.4) were higher in the active group than in controls (42.5 ± 2.2 ms and 80.0 ± 29.3) (p = 0.046 and p = 0.02, respectively). In conclusion, daily intake of yoghurt enriched with bioactive components may aid in stress coping.
KW - alpha-lactalbumin
KW - bioactive peptides
KW - B vitamins
KW - sleep
KW - stress
KW - yoghurts
U2 - 10.3109/09637486.2014.880669
DO - 10.3109/09637486.2014.880669
M3 - Article
VL - 65
SP - 507
EP - 514
JO - International Journal of Food Sciences and Nutrition
JF - International Journal of Food Sciences and Nutrition
SN - 0963-7486
IS - 4
ER -